Other Limited Time Magic themes will celebrate pirates, a weeklong Valentine's Day and an expanded July 4th celebration into "Independence Week." One week, the Magic Kingdom a cappella group Dapper Dans will shift into boy-band mode in its selections.

On Sept. 13, it will be "Unleash the Villains," with a bad-guy dance party, collectibles and late-night shenanigans at Disney's Hollywood Studios, which will stay open until 1 a.m.

The promotion was announced Wednesday morning in New York's Times Square alongside a three-story ice castle. Similar events will be staged at Disneyland in California.

Disney did not release an exact schedule of events, saying the news will be spread via the Disney Parks Blog, DisneyWorld.com, Facebook, Twitter and other means, "adding to the element of surprise," the release said.

We've combed the Sentinel's archives, as well as some other historic resources, to create this gallery of the early planning and construction of Walt Disney World. The photos span from the early 1960s to 1989 and include photos of Magic Kingdom and EPCOT, as well as resorts and other areas on Disney...